Exercise platform



FIG. 1 is a front, perspective view of an exercise platform.

FIG. 2 is a top view.

FIG. 3 is a bottom view.

FIG. 4 is a front view.

FIG. 5 is a back view.

FIG. 6 is a right side view; and,

FIG. 7 is a left side view. 

The ornamental design for an exercise platform, as shown and described. 